Contacts of the helix formed by residues 546 - 559 (chain G) in PDB entry 1O1F


Residue contacts within the protein are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332). A short description of the analytical approach is given at the end of the page.
For CSU analysis of other PDB entry

Note:
Non-standard 3 letter residue codes indicate a heterogroup. To identify and analyse, use LPC software

Legend:
Dist - nearest distance (Å) between atoms of two residues
Surf - contact surface area (Å2) between two residues
HB   - hydrophilic-hydrophilic contact (hydrogen bond)
Arom - aromatic-aromatic contact
Phob - hydrophobic-hydrophobic contact
DC   - hydrophobic-hydrophilic contact (destabilizing contact)
+/-  - indicates presence/absence of a specific contacts
*    - indicates residues forming contacts  by their side chain
       (including CA atoms)
Residues in contact with THR 546 (chain G).
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    544G  LYS      4.6     3.5    +      -       -      -
    545G  ALA*     1.3    78.1    +      -       -      +
    547G  ASP*     1.3    80.2    +      -       +      +
    548G  THR*     3.0    28.0    -      -       -      +
    549G  SER*     2.9    17.4    +      -       -      -
    550G  PHE*     2.8    23.7    +      -       -      +
    596G  LEU*     3.5     7.6    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 547 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    546G  THR*     1.3    77.7    -      -       +      +
    548G  THR*     1.3    54.4    +      -       -      +
    550G  PHE*     3.0    13.1    -      -       -      +
    551G  MLY      2.7    36.0    +      -       -      +
    592G  ILE*     3.7    17.0    -      -       -      +
    593G  SER*     3.3     9.0    -      -       -      -
    594G  GLY*     2.9    29.2    +      -       -      -
    595G  TRP*     4.5     0.6    -      -       -      +
    596G  LEU*     3.4    31.8    +      -       -      +
    597G  GLU      4.9     0.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with THR 548 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     478  MET*     2.9     5.7    -      -       -      +
    546G  THR*     3.0    17.6    -      -       +      +
    547G  ASP*     1.3    79.4    -      -       -      +
    549G  SER*     1.3    62.3    +      -       -      +
    551G  MLY      3.3    29.1    +      -       -      +
    552G  ASN*     2.8    36.9    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with SER 549 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     458  VAL*     2.4    21.6    -      -       -      +
     468  GLY*     2.2    31.9    -      -       -      +
     478  MET*     2.6     8.5    +      -       -      +
    539G  GLU*     2.8    24.2    +      -       -      +
    545G  ALA*     4.2     2.0    -      -       -      -
    546G  THR*     2.9    31.2    +      -       -      -
    548G  THR*     1.3    84.9    -      -       -      +
    550G  PHE*     1.3    65.4    +      -       -      +
    552G  ASN      3.0     0.9    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with PHE 550 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     468  GLY*     1.1    62.6    -      -       -      +
    532G  ILE*     4.4     3.6    -      -       +      -
    535G  ILE*     3.9    20.9    -      -       +      -
    536G  LEU*     3.2    55.0    -      -       +      -
    539G  GLU*     4.1     3.4    -      -       +      -
    546G  THR      2.8     9.5    +      -       -      +
    547G  ASP*     3.0     8.5    -      -       +      +
    549G  SER*     1.3    73.3    +      -       -      +
    551G  MLY      1.3    52.5    +      -       -      +
    553G  MLY      3.5     0.2    -      -       -      +
    554G  LEU*     2.9    30.1    +      -       +      +
    592G  ILE*     3.0    40.2    -      -       +      -
    595G  TRP*     4.1    16.2    -      +       +      -
    596G  LEU*     3.8    18.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MLY 551 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     468  GLY      2.5     9.7    -      -       -      +
    547G  ASP      2.7    19.2    +      -       -      +
    548G  THR*     3.5    31.1    +      -       -      +
    549G  SER      3.1     0.2    -      -       -      -
    550G  PHE*     1.3    72.5    +      -       -      +
    552G  ASN*     1.3    69.8    +      -       -      +
    554G  LEU*     2.7    27.6    +      -       +      +
    555G  TYR*     3.0    42.2    +      -       +      +
    576G  GLU*     5.3     5.4    -      -       -      -
    577G  ALA*     5.0     2.5    -      -       -      -
    578G  HIS*     3.8    34.3    -      -       +      +
    592G  ILE*     4.4    18.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASN 552 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     448  MET*     4.6     1.8    -      -       +      -
     468  GLY      2.7     2.2    +      -       -      -
     478  MET*     0.8   424.6    -      -       +      +
     488  GLY      1.2    52.8    +      -       -      -
     508  LYS*     5.9     4.0    -      -       -      +
     538  TYR*     6.0     1.6    -      -       -      +
     578  GLU*     5.2     9.3    +      -       -      +
    548G  THR*     2.8    25.7    +      -       -      +
    551G  MLY      1.3    82.0    +      -       -      -
    553G  MLY      1.3     7.2    -      -       -      -
    555G  TYR*     2.9     5.3    +      -       -      -
    556G  ASP      2.9     1.2    +      -       -      -
----------------------------------------------------------
 Back to top of page

Residues in contact with MLY 553 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    1676  GLU      5.2     2.7    -      -       -      -
    1686  GLY*     6.4     0.2    -      -       -      -
    3556  MET*     5.5     2.0    -      -       -      -
     438  VAL*     4.2    17.9    -      -       +      -
     448  MET      2.2    27.4    -      -       -      +
     458  VAL*     1.1    85.8    -      -       -      +
     468  GLY*     1.6    58.3    +      -       -      +
     478  MET*     0.9   148.2    +      -       -      +
     488  GLY*     2.5    12.6    +      -       -      -
    535G  ILE*     3.9    17.6    -      -       +      +
    538G  GLU*     4.3    15.9    -      -       -      +
    539G  GLU*     3.0    11.9    +      -       -      +
    542G  PHE*     3.3    33.4    -      -       -      -
    550G  PHE      3.5     0.2    -      -       -      +
    552G  ASN      1.3     6.9    -      -       -      -
    554G  LEU*     1.3    53.0    +      -       -      +
    557G  GLU*     3.6    11.1    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 554 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     468  GLY      2.5     7.7    +      -       -      -
    532G  ILE*     4.1    22.9    -      -       +      -
    535G  ILE*     3.4    37.2    -      -       +      -
    550G  PHE*     2.9    33.5    +      -       +      +
    551G  MLY      2.8    15.3    -      -       +      +
    553G  MLY      1.3    75.2    +      -       -      +
    555G  TYR*     1.3    61.1    +      -       +      +
    558G  HIS*     3.1    30.4    +      -       +      +
    565G  PHE*     4.1    16.9    -      -       +      -
    579G  PHE*     3.9    31.2    -      -       +      -
    592G  ILE*     4.4     5.6    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with TYR 555 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     478  MET*     4.2     1.6    -      -       +      -
     488  GLY*     2.3    15.7    -      -       -      +
     498  GLN      3.4     2.8    -      -       -      +
     508  LYS*     5.3     7.0    -      -       +      -
    551G  MLY      3.0    52.8    +      -       +      +
    552G  ASN*     2.9    11.3    +      -       -      +
    554G  LEU*     1.3    71.3    -      -       +      +
    556G  ASP*     1.3    57.6    +      -       -      +
    557G  GLU      2.7    12.6    +      -       -      -
    559G  LEU*     2.7    61.1    +      -       +      +
    565G  PHE*     3.8    17.7    -      +       -      -
    567G  LYS*     4.4    12.6    -      -       +      +
    568G  PRO*     4.5     4.3    -      -       -      +
    578G  HIS*     2.9    30.9    +      -       -      -
    579G  PHE*     4.9     0.4    -      -       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with ASP 556 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     428  GLY      4.4     1.6    -      -       -      +
     438  VAL*     3.5    14.0    -      -       +      -
     448  MET*     3.6    19.4    +      -       -      +
     478  MET*     3.5    11.8    -      -       -      +
     488  GLY*     0.9   201.4    +      -       -      +
     498  GLN*     1.0   141.3    -      -       -      +
     508  LYS*     2.7    36.5    +      -       -      +
     538  TYR*     4.1     8.9    +      -       -      -
    552G  ASN      3.6     4.4    -      -       -      +
    555G  TYR*     1.3    68.1    -      -       -      +
    557G  GLU*     1.3    45.1    +      -       -      -
    559G  LEU      5.0     1.0    -      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with GLU 557 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     438  VAL*     4.9     9.3    -      -       +      +
     478  MET      4.9     0.2    -      -       -      +
     488  GLY*     2.1    19.7    -      -       -      -
     498  GLN*     2.0     8.9    -      -       -      +
    530G  MET*     3.6    39.4    -      -       -      +
    535G  ILE*     4.2     5.6    -      -       +      -
    553G  MLY      3.6    14.4    -      -       -      +
    554G  LEU      4.2     0.7    -      -       -      +
    555G  TYR      2.7     0.4    +      -       -      -
    556G  ASP      1.3    69.6    -      -       -      -
    558G  HIS*     1.3    83.6    +      -       +      +
    559G  LEU      5.2     0.2    -      -       -      -
    561G  LYS*     4.2    31.8    +      -       -      +
----------------------------------------------------------
 Back to top of page

Residues in contact with HIS 558 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
    525G  LEU*     3.6    24.5    -      -       +      +
    530G  MET*     2.7    30.9    +      -       +      -
    531G  GLY*     3.6    16.8    -      -       -      -
    532G  ILE*     4.1     6.5    +      -       +      -
    535G  ILE*     3.8     8.5    -      -       +      +
    554G  LEU*     3.1    26.9    +      -       +      +
    555G  TYR      2.7     5.5    +      -       -      -
    557G  GLU*     1.3    90.2    +      -       +      +
    559G  LEU*     1.3    65.1    +      -       -      +
    560G  GLY      3.3     0.2    +      -       -      -
    561G  LYS*     3.1     2.6    +      -       -      -
    562G  SER*     2.8    39.6    +      -       -      +
    565G  PHE*     3.7    25.0    -      +       +      -
----------------------------------------------------------
 Back to top of page

Residues in contact with LEU 559 (chain G). Click here for Legend to table.
----------------------------------------------------------
                                  Specific contacts
                               ---------------------------
     Residue       Dist    Surf   HB    Arom    Phob    DC
----------------------------------------------------------
     498  GLN      4.3    10.1    -      -       -      +
     518  ASP*     5.7     4.7    -      -       -      +
    555G  TYR*     2.7    52.7    +      -       +      +
    556G  ASP      5.0     1.6    -      -       -      +
    558G  HIS*     1.3    73.0    -      -       -      +
    560G  GLY*     1.3    68.2    +      -       -      +
    561G  LYS*     3.0     8.2    +      -       -      +
    565G  PHE*     3.6    20.4    -      -       +      +
    566G  GLN*     5.1     0.9    -      -       -      -
    567G  LYS*     4.2    34.3    -      -       +      +
----------------------------------------------------------
 Back to top of page


A short description of the analytical approach
The contact analysis used in this page is based upon the approach developed in: Sobolev V., Wade R.C., Vriend G. and Edelman M. PROTEINS (1996) 25, 120-129. Contact legitimacy depends on the hydrophobic-hydrophilic properties of the contacting atoms. In order to define it, for each inter-atomic contact, eight atom classes have been introduced:


   I  Hydrophilic      - N and O that can donate and accept hydrogen bonds
                         (e.g., oxygen of hydroxyl group of Ser. or Thr)
  II  Acceptor         - N or O that can only accept a hydrogen bond
 III  Donor            - N that can only donate a hydrogen bond
  IV  Hydrophobic      - Cl, Br, I and all C atoms that are not in
                         aromatic rings and do not have a covalent bond to
                         a N or O atom
   V  Aromatic         - C in aromatic rings irrespective of any other 
                         bonds formed by the atom
  VI  Neutral          - C atoms that have a covalent bond to at least one
                         atom of class I or two or more atoms from class II
                         or III; atoms; S, F, P, and metal atoms in all cases
 VII  Neutral-donor    - C atoms that have a covalent bond with only one
                         atom of class III
VIII  Neutral-acceptor - C atoms that have a covalent bond with only 
                         one atom of class II
For each pair of contacts the state of legitimacy is shown below:

Legend:
+, legitimate
-, illegitimate
------------------------------------------------------------
  Atomic class           I  II  III   IV   V   VI  VII  VIII
------------------------------------------------------------
   I  (Hydrophilic)      +   +    +    -   +   +    +    +
  II  (Acceptor)         +   -    +    -   +   +    +    -
 III  (Donor)            +   +    -    -   +   +    -    +
  IV  (Hydrophobic)      -   -    -    +   +   +    +    +
   V  (Aromatic)         +   +    +    +   +   +    +    +
  VI  (Neutral)          +   +    +    +   +   +    +    +
 VII  (Neutral-donor)    +   +    -    +   +   +    -    +
VIII  (Neutral-acceptor) +   -    +    +   +   +    +    -
------------------------------------------------------------
Warning!
Atom classes for heterogroups are automatically assigned based on the atomic coordinates. However, in three cases (see below) the automatic assignment is currently ambiguous. In these cases, the user is advised to manually analyse the full list of contacts using LPC software.
1. Carbon atoms belonging to a 4-, 5- or 6-member ring are 
   considered "aromatic" (Class V) if the ring is approximately
   planar, and "hydrophobic" (Class IV) or "neutral" (Classes
   VI, VII, VIII) if the ring is non-planar.
2. The oxygen atom of a carbonyl or hydroxy group is considered
   "hydroxy" (Class I) if the CO bond is longer than 1.29 Å, and
   "carbonyl" (Class II) if shorter.
3. All nitrogen atoms are considered "hydrophilic" (Class I).

Please E-mail any questions and/or suggestions concerning this page to Vladimir.Sobolev@weizmann.ac.il